A Set of Monitoring Tools for Path Computation Element (PCE)-Based Architecture
RFC 5886
Document | Type | RFC - Proposed Standard (June 2010; No errata) | |
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Authors | Jean-Louis Le Roux , Vasseur Jp , Yuichi Ikejiri | ||
Last updated | 2018-12-20 | ||
Replaces | draft-vasseur-pce-monitoring | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 5886 (Proposed Standard) | |
Action Holders |
(None)
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Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Adrian Farrel | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) JP. Vasseur, Ed. Request for Comments: 5886 Cisco Systems, Inc. Category: Standards Track JL. Le Roux ISSN: 2070-1721 France Telecom Y. Ikejiri NTT Communications Corporation June 2010 A Set of Monitoring Tools for Path Computation Element (PCE)-Based Architecture Abstract A Path Computation Element (PCE)-based architecture has been specified for the computation of Traffic Engineering (TE) Label Switched Paths (LSPs) in Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS) networks in the context of single or multiple domains (where a domain refers to a collection of network elements within a common sphere of address management or path computational responsibility such as Interior Gateway Protocol (IGP) areas and Autonomous Systems). Path Computation Clients (PCCs) send computation requests to PCEs, and these may forward the requests to and cooperate with other PCEs forming a "path computation chain". In PCE-based environments, it is thus critical to monitor the state of the path computation chain for troubleshooting and performance monitoring purposes: liveness of each element (PCE) involved in the PCE chain and detection of potential resource contention states and statistics in terms of path computation times are examples of such metrics of interest. This document specifies procedures and extensions to the Path Computation Element Protocol (PCEP) in order to gather such information. Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc5886. Vasseur, et al. Standards Track [Page 1] RFC 5886 Monitoring Tools for PCE-Based Architecture June 2010 Copyright Notice Copyright (c) 2010 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Vasseur, et al. Standards Track [Page 2] RFC 5886 Monitoring Tools for PCE-Based Architecture June 2010 Table of Contents 1. Introduction ....................................................4 1.1. Requirements Language ......................................5 2. Terminology .....................................................5 3. Path Computation Monitoring Messages ............................6 3.1. Path Computation Monitoring Request (PCMonReq) Message .....6 3.2. Path Monitoring Reply (PCMonRep) Message ...................9 4. Path Computation Monitoring Objects ............................11 4.1. MONITORING Object .........................................11 4.2. PCC-ID-REQ Object .........................................13 4.3. PCE-ID Object .............................................14 4.4. PROC-TIME Object ..........................................15 4.5. OVERLOAD Object ...........................................17 5. Policy .........................................................18 6. Elements of Procedure ..........................................18 7. Manageability Considerations ...................................20 7.1. Control of Function and Policy ............................20 7.2. Information and Data Models ...............................20 7.3. Liveness Detection and Monitoring .........................20 7.4. Verify Correct Operations .................................20 7.5. Requirements on Other Protocols ...........................21 7.6. Impact on Network Operations ..............................21Show full document text